[c-nsp] Prepare for router Wednesday

[Florian Weimer]

* Gert Doering:

> What they are *not* doing is "post security advisories every few weeks
> for things that are not (yet) known out in the wild".  Because when they
> do that, people *will* go out trying to find the exploit, and then everybody
> has to scramble to upgrade, multiple times a year.

This is one precondition for creating a market for intelligence derived
by comparing subsequent IOS versions.  Certainly an interesting
development.